Steve,
Your problem sounds more electical than fuel supply related. I would make
sure all of the conncections in the ignition circuit are clean and tight.
That means tracking down all the 1/4 inch spade connectors and shining the
blades up and making sure the female is tight. The circuit starts near the
fuses, goes to the ignition switch then to the ballast resistor then to the
pertronix and coil. It might even be an intermittent contact in the
ignition switch.
Erich
----- Original Message -----
From: "Steve Sage" <ssage@socal.rr.com>
To: "Tiger Mailing List" <tigers@autox.team.net>
Sent: Saturday, May 10, 2003 3:33 PM
Subject: Intermittent Stalling Problem Again
> I thought I'd solved this a couple of months ago but yesterday it came
> back. Driving down the road, the Tiger will suddenly just kind of
> "bump", like it's missed a beat. It hasn't stalled (yet) while cruising
> down the road or the freeway, although it did that on its previous
> appearance. It is also frequently just shutting down while I'm at a stop
> while idling. I just drove it with the fuel pump (battery) access door
> open to listen to the pump (a Pertronix "cube" unit...puts out 5 lbs
> constant pressure) and, sure enough, while idling to make a turn, the
> motor shut off. The pump continued to click away, with no apparent
> change in its sound, though. The Tiger instantly starts right back up
> when this happens. Temps. out today are around 75-80 degrees, so not too
> hot.
>
> I checked voltage at the fuel pump and it's around 12 voltswith the key
> on, but not running, and 13-14 volts with the motor running so voltage
> doesn't seem to be a problem. I guess there could be a momentary "blip"
> in the voltage while I'm driving, temporarily shutting down the pump,
> but it doesn't seem so.
>
> When this happened the last time I sent my Pertronix ignition back to
> Pertronix for testing and it checked out perfectly. I changed the coil
> at the same time. The white wire from the pump to the ignition switch
> seems to be connected solidly.
>
> One sign of what may be trouble is when I chenged both fuel filters (I
> have one in the stock position in the eng. compartment and another just
> before the fuel pump) last night, thinking that may be the problem, I
> found a whole lot of black paint flakes from the tanks in the filter by
> the pump. The filter next to the carb was completely clean. Could some
> of that paint be lodged in the fuel pump, but only intermittently shut
> down the fuel flow?
>
> I'm stumped again. I'm about ready to replace the fuel pump with my
> spare, but I don't want to do that and still not be sure what's going
> on. I'm also going to make sure the Pertronix module is still firmly
> screwed in (and grounded).
>
> Any ideas and suggestions out there?
>
> Thanks!
> Steve Sage
|